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Sudoku false positive (wrong move)
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3
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I'm new to sodoku puzzles.
I tried solving the one above but my last move was flagged as a wrong move(highlighted red).
I believe it is a false positive since the "6"(highlighted red) I inserted is unique on the rows and columns as well as within the small square.
Can someone justify this for me?
sudoku
asked 1 hour ago
Emmanuel Adu Gyamfi
162
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Emmanuel Adu Gyamfi is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
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up vote
3
down vote
favorite
I'm new to sodoku puzzles.
I tried solving the one above but my last move was flagged as a wrong move(highlighted red).
I believe it is a false positive since the "6"(highlighted red) I inserted is unique on the rows and columns as well as within the small square.
Can someone justify this for me?
sudoku
asked 1 hour ago
Emmanuel Adu Gyamfi
162
New contributor
Emmanuel Adu Gyamfi is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
2
Welcome to Puzzle.SE! You can earn a badge by checking out puzzling.stackexchange.com/tour
– Dorrulf
1 hour ago
add a comment |Â
up vote
3
down vote
favorite
up vote
3
down vote
favorite
I'm new to sodoku puzzles.
I tried solving the one above but my last move was flagged as a wrong move(highlighted red).
I believe it is a false positive since the "6"(highlighted red) I inserted is unique on the rows and columns as well as within the small square.
Can someone justify this for me?
sudoku
asked 1 hour ago
Emmanuel Adu Gyamfi
162
New contributor
Emmanuel Adu Gyamfi is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
I'm new to sodoku puzzles.
I tried solving the one above but my last move was flagged as a wrong move(highlighted red).
I believe it is a false positive since the "6"(highlighted red) I inserted is unique on the rows and columns as well as within the small square.
Can someone justify this for me?
sudoku
sudoku
asked 1 hour ago
Emmanuel Adu Gyamfi
162
New contributor
Emmanuel Adu Gyamfi is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 1 hour ago
Emmanuel Adu Gyamfi
162
New contributor
Emmanuel Adu Gyamfi is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 1 hour ago
Emmanuel Adu Gyamfi
162
New contributor
Emmanuel Adu Gyamfi is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 1 hour ago
Emmanuel Adu Gyamfi
162
asked 1 hour ago
Emmanuel Adu Gyamfi
162
162
New contributor
Emmanuel Adu Gyamfi is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
New contributor
Emmanuel Adu Gyamfi is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
Emmanuel Adu Gyamfi is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
2
Welcome to Puzzle.SE! You can earn a badge by checking out puzzling.stackexchange.com/tour
– Dorrulf
1 hour ago
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Welcome to Puzzle.SE! You can earn a badge by checking out puzzling.stackexchange.com/tour
– Dorrulf
1 hour ago
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Welcome to Puzzle.SE! You can earn a badge by checking out puzzling.stackexchange.com/tour
– Dorrulf
1 hour ago
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– Dorrulf
1 hour ago
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3 Answers
3
active
oldest
votes
up vote
3
down vote
Based on the current values above, within the center set, 6 can only be placed in either the right center or right bottom locations. However, you are not far along enough to 100% determine which of those two locations are correct yet. Rather, through elimination and evaluation both are still feasible. Based on the fact that the application flagged the right center location, once you are far enough along it is likely that the right bottom location will be determinable as the correct placement.
Hope this helps!
If you'd like me to explain why the right bottom location is still valid for 6, let me know.
@ABcDexter made me realize something I forgot to mention, so I'll elaborate on what they stated. Maybe you already are aware but I'll mention it just in case: Just because a number looks like it can go there at the time, does not mean it will in the end. Remember, there is only 1 solution to any properly given Sudoku puzzle, meaning you must be certain (or have a lucky guess) as to where a number will be placed.
answered 1 hour ago
Dorrulf
8415
Yes, uniqueness is an important property of grid-based puzzles :)
– ABcDexter
1 hour ago
add a comment |Â
up vote
2
down vote
If you solve the middle blocks, then something like this comes up which eliminate the $6$ from the cell you just entered.
Also, as Dorrulf mentioned, there are two possibilities for 6 in that 3x3 block and you need to be absolutely certain before putting a number in the cell.
answered 1 hour ago
ABcDexter
4,93633073
add a comment |Â
up vote
2
down vote
Others have already said this, but I'll try to put it in as clear words as possible:
When solving Sudoku puzzles, you don't put the numbers where they might be, you only put them where they must certainly be. Deduce, eliminate possibilities, find restrictions on options, but only when you are certain, put the number in.
Or even more clearly: You never have to guess in sudoku.
(Unless you are playing some ultra-hard otherwise unsolvable difficulty levels.)
Happy sudokuing!
answered 35 mins ago
Bass
25.3k461161
add a comment |Â
3 Answers
3
active
oldest
votes
3 Answers
3
active
oldest
votes
active
oldest
votes
active
oldest
votes
up vote
3
down vote
Based on the current values above, within the center set, 6 can only be placed in either the right center or right bottom locations. However, you are not far along enough to 100% determine which of those two locations are correct yet. Rather, through elimination and evaluation both are still feasible. Based on the fact that the application flagged the right center location, once you are far enough along it is likely that the right bottom location will be determinable as the correct placement.
Hope this helps!
If you'd like me to explain why the right bottom location is still valid for 6, let me know.
@ABcDexter made me realize something I forgot to mention, so I'll elaborate on what they stated. Maybe you already are aware but I'll mention it just in case: Just because a number looks like it can go there at the time, does not mean it will in the end. Remember, there is only 1 solution to any properly given Sudoku puzzle, meaning you must be certain (or have a lucky guess) as to where a number will be placed.
answered 1 hour ago
Dorrulf
8415
Yes, uniqueness is an important property of grid-based puzzles :)
– ABcDexter
1 hour ago
add a comment |Â
up vote
3
down vote
Based on the current values above, within the center set, 6 can only be placed in either the right center or right bottom locations. However, you are not far along enough to 100% determine which of those two locations are correct yet. Rather, through elimination and evaluation both are still feasible. Based on the fact that the application flagged the right center location, once you are far enough along it is likely that the right bottom location will be determinable as the correct placement.
Hope this helps!
If you'd like me to explain why the right bottom location is still valid for 6, let me know.
@ABcDexter made me realize something I forgot to mention, so I'll elaborate on what they stated. Maybe you already are aware but I'll mention it just in case: Just because a number looks like it can go there at the time, does not mean it will in the end. Remember, there is only 1 solution to any properly given Sudoku puzzle, meaning you must be certain (or have a lucky guess) as to where a number will be placed.
answered 1 hour ago
Dorrulf
8415
Yes, uniqueness is an important property of grid-based puzzles :)
– ABcDexter
1 hour ago
add a comment |Â
up vote
3
down vote
up vote
3
down vote
Based on the current values above, within the center set, 6 can only be placed in either the right center or right bottom locations. However, you are not far along enough to 100% determine which of those two locations are correct yet. Rather, through elimination and evaluation both are still feasible. Based on the fact that the application flagged the right center location, once you are far enough along it is likely that the right bottom location will be determinable as the correct placement.
Hope this helps!
If you'd like me to explain why the right bottom location is still valid for 6, let me know.
@ABcDexter made me realize something I forgot to mention, so I'll elaborate on what they stated. Maybe you already are aware but I'll mention it just in case: Just because a number looks like it can go there at the time, does not mean it will in the end. Remember, there is only 1 solution to any properly given Sudoku puzzle, meaning you must be certain (or have a lucky guess) as to where a number will be placed.
answered 1 hour ago
Dorrulf
8415
Based on the current values above, within the center set, 6 can only be placed in either the right center or right bottom locations. However, you are not far along enough to 100% determine which of those two locations are correct yet. Rather, through elimination and evaluation both are still feasible. Based on the fact that the application flagged the right center location, once you are far enough along it is likely that the right bottom location will be determinable as the correct placement.
Hope this helps!
If you'd like me to explain why the right bottom location is still valid for 6, let me know.
@ABcDexter made me realize something I forgot to mention, so I'll elaborate on what they stated. Maybe you already are aware but I'll mention it just in case: Just because a number looks like it can go there at the time, does not mean it will in the end. Remember, there is only 1 solution to any properly given Sudoku puzzle, meaning you must be certain (or have a lucky guess) as to where a number will be placed.
answered 1 hour ago
Dorrulf
8415
edited 1 hour ago
answered 1 hour ago
Dorrulf
8415
answered 1 hour ago
Dorrulf
8415
answered 1 hour ago
Dorrulf
8415
8415
Yes, uniqueness is an important property of grid-based puzzles :)
– ABcDexter
1 hour ago
add a comment |Â
Yes, uniqueness is an important property of grid-based puzzles :)
– ABcDexter
1 hour ago
Yes, uniqueness is an important property of grid-based puzzles :)
– ABcDexter
1 hour ago
Yes, uniqueness is an important property of grid-based puzzles :)
– ABcDexter
1 hour ago
add a comment |Â
up vote
2
down vote
If you solve the middle blocks, then something like this comes up which eliminate the $6$ from the cell you just entered.
Also, as Dorrulf mentioned, there are two possibilities for 6 in that 3x3 block and you need to be absolutely certain before putting a number in the cell.
answered 1 hour ago
ABcDexter
4,93633073
add a comment |Â
up vote
2
down vote
If you solve the middle blocks, then something like this comes up which eliminate the $6$ from the cell you just entered.
Also, as Dorrulf mentioned, there are two possibilities for 6 in that 3x3 block and you need to be absolutely certain before putting a number in the cell.
answered 1 hour ago
ABcDexter
4,93633073
add a comment |Â
up vote
2
down vote
up vote
2
down vote
If you solve the middle blocks, then something like this comes up which eliminate the $6$ from the cell you just entered.
Also, as Dorrulf mentioned, there are two possibilities for 6 in that 3x3 block and you need to be absolutely certain before putting a number in the cell.
answered 1 hour ago
ABcDexter
4,93633073
If you solve the middle blocks, then something like this comes up which eliminate the $6$ from the cell you just entered.
Also, as Dorrulf mentioned, there are two possibilities for 6 in that 3x3 block and you need to be absolutely certain before putting a number in the cell.
answered 1 hour ago
ABcDexter
4,93633073
answered 1 hour ago
ABcDexter
4,93633073
answered 1 hour ago
ABcDexter
4,93633073
answered 1 hour ago
ABcDexter
4,93633073
4,93633073
add a comment |Â
add a comment |Â
up vote
2
down vote
Others have already said this, but I'll try to put it in as clear words as possible:
When solving Sudoku puzzles, you don't put the numbers where they might be, you only put them where they must certainly be. Deduce, eliminate possibilities, find restrictions on options, but only when you are certain, put the number in.
Or even more clearly: You never have to guess in sudoku.
(Unless you are playing some ultra-hard otherwise unsolvable difficulty levels.)
Happy sudokuing!
answered 35 mins ago
Bass
25.3k461161
add a comment |Â
up vote
2
down vote
Others have already said this, but I'll try to put it in as clear words as possible:
When solving Sudoku puzzles, you don't put the numbers where they might be, you only put them where they must certainly be. Deduce, eliminate possibilities, find restrictions on options, but only when you are certain, put the number in.
Or even more clearly: You never have to guess in sudoku.
(Unless you are playing some ultra-hard otherwise unsolvable difficulty levels.)
Happy sudokuing!
answered 35 mins ago
Bass
25.3k461161
add a comment |Â
up vote
2
down vote
up vote
2
down vote
Others have already said this, but I'll try to put it in as clear words as possible:
When solving Sudoku puzzles, you don't put the numbers where they might be, you only put them where they must certainly be. Deduce, eliminate possibilities, find restrictions on options, but only when you are certain, put the number in.
Or even more clearly: You never have to guess in sudoku.
(Unless you are playing some ultra-hard otherwise unsolvable difficulty levels.)
Happy sudokuing!
answered 35 mins ago
Bass
25.3k461161
Others have already said this, but I'll try to put it in as clear words as possible:
When solving Sudoku puzzles, you don't put the numbers where they might be, you only put them where they must certainly be. Deduce, eliminate possibilities, find restrictions on options, but only when you are certain, put the number in.
Or even more clearly: You never have to guess in sudoku.
(Unless you are playing some ultra-hard otherwise unsolvable difficulty levels.)
Happy sudokuing!
answered 35 mins ago
Bass
25.3k461161
answered 35 mins ago
Bass
25.3k461161
answered 35 mins ago
Bass
25.3k461161
answered 35 mins ago
Bass
25.3k461161
25.3k461161
add a comment |Â
add a comment |Â
Emmanuel Adu Gyamfi is a new contributor. Be nice, and check out our Code of Conduct.
Emmanuel Adu Gyamfi is a new contributor. Be nice, and check out our Code of Conduct.
Emmanuel Adu Gyamfi is a new contributor. Be nice, and check out our Code of Conduct.
Emmanuel Adu Gyamfi is a new contributor. Be nice, and check out our Code of Conduct.
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Welcome to Puzzle.SE! You can earn a badge by checking out puzzling.stackexchange.com/tour
– Dorrulf
1 hour ago